Finding the Fourth Proportional to 1,382.67, 1,908.76 and 942.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382.67 : 1,908.76 = 942.87 : x
2. Step 2: Convert to fraction form
   1,382.67/1,908.76 = 942.87/x
3. Step 3: Cross multiply
   1,382.67x = 1,908.76 × 942.87
4. Step 4: Simplify right side
   1,382.67x = 1,799,712.54
5. Step 5: Solve for x
   x = 1,799,712.54/1,382.67
6. Step 6: Final answer
   x = 1,301.63